Fast Beam Conditions Monitor BCM1F for the CMS Experiment (2009)
Bell, A., Castro, E., Hall-Wilton, R., Lange, W., Lohmann, W., Macpherson, A., ...
The CMS Beam Conditions and Radiation Monitoring System, BRM, will support beam tuning, protect the CMS detector from adverse beam conditions, and measure the accumulated dose close to or inside all...
The LHC Injection Tests (2009)
Lamont, M, Alemany-Fernandez, R, Bailey, R, Collier, P, Goddard, B, Kain, V, ...
A series of LHC injection tests was performed in August and September 2008. The first saw beam injected into sector 23; the second into sectors 78 and 23; the third into sectors 78-67 and sectors...
Operational Experience with First Circulating Beam in the LHC (2009)
Lamont, M, Alemany-Fernandez, R, Bailey, R, Collier, P, Goddard, B, Kain, V, ...
Following a series of injection tests, the first attempts to pass beam around both directions of the LHC were successful and led rapidly to circulating beam in the counter clockwise direction (beam...
LHC Workshop on Experimental Conditions and Beam-Induced Detectors Backgrounds (2009)
Alemany-Fernández, R, Burkhardt, H, Ferro-Luzzi, M, Lamont, M, MacPherson, A, Redaelli, S
Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
The inclusive production of prompt photons with energy above 10 GeV is measured using the OPAL detector in hadronic Z^0 decays at LEP. In contrast to previous measurements, the prompt photons were...
Measurement of f(c -> D^*+ X), f(b -> D^*+ X) and Gamma_cc(bar)/Gamma_had using D^*+/- Mesons (2008)
Al, K Ackerstaff Et, Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, ...
The production rates of D^*+/- mesons in charm and bottom events at centre-of-mass energies of about 91 GeV and the partial width of primary cc(bar) pairs in hadronic Z^0 decays have been measured at...
A Measurement of the B_s^0 Lifetime using Reconstructed D_s^- Mesons (2008)
Al, K Ackerstaff Et, Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, ...
We report a measurement of the B^0_s meson lifetime from B_s^0 -> D^-_s X decays, where D_s^- mesons are reconstructed in the D_s^- -> phi pi^- and D_s^- -> K^{*0} K^- decay channels. From...
Al, K Ackerstaff Et, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
Production of events with hadronic and leptonic final states has been measured in e^+e^- collisions at centre-of-mass energies of 130-172 GeV, using the OPAL detector at LEP. Cross-sections and...
Performance of the Main Dipole Magnet Circuits of the LHC during Commissioning (2008)
Verweij, A, Baggiolini, V, Ballarino, A, Bellesia, B, Bordry, Frederick, Cantone, A, ...
During hardware commissioning of the Large Hadron Collider (LHC), 8 main dipole circuits are tested at 1.9 K and up to their nominal current. Each dipole circuit contains 154 magnets of 15 m length,...
Venturini-Delsolaro, W, Baggiolini, V, Ballarino, A, Bellesia, B, Bordry, Frederick, Cantone, A, ...
The LHC is a complex machine requiring more than 7400 superconducting corrector magnets distributed along a circumference of 26.7 km. These magnets are powered in 1446 different electrical circuits...
The ATLAS semiconductor tracker end-cap module (2007)
Abdesselam, A., Adkin, P. J., Allport, P. P., Alonso, J., Andricek, L., Anghinolfi, F., ...
37 pages, 43 figures.-- PACS nrs.: 29.40.Gx; 29.40.Wk.-- ISI Article Identifier: 000247146800010.-- Printed version published on Jun 1, 2007.
CMS physics technical design report, volume II: Physics performance (2007)
Bayatian, G. L., Chatrchyan, S., Hmayakyan, G., Sirunyan, A. M., Adam, W., Bergauer, T., ...
CMS is a general purpose experiment, designed to study the physics of pp collisions at 14 TeV at the Large Hadron Collider ( LHC). It currently involves more than 2000 physicists from more than 150...
Macpherson, A., Spinks, Anneliese Barclay
BACKGROUND: Evidence exists to suggest that bicycle helmets may reduce the risk of head injuries to cyclists, however helmets are not uniformly worn by all bicycle users. Legislation has been enacted...
Macpherson, A., Spinks, Anneliese Barclay
BACKGROUND: Evidence exists to suggest that bicycle helmets may reduce the risk of head injuries to cyclists, however helmets are not uniformly worn by all bicycle users. Legislation has been enacted...
Macpherson, A., Spinks, Anneliese Barclay
BACKGROUND: Evidence exists to suggest that bicycle helmets may reduce the risk of head injuries to cyclists, however helmets are not uniformly worn by all bicycle users. Legislation has been enacted...
Macpherson, A., Spinks, Anneliese Barclay
BACKGROUND: Evidence exists to suggest that bicycle helmets may reduce the risk of head injuries to cyclists, however helmets are not uniformly worn by all bicycle users. Legislation has been enacted...
Precision Electroweak Measurements on the Z Resonance (2006)
Schael, S, Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, ...
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17...
Precision Electroweak Measurements on the Z Resonance (2006)
Schael, S, Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, ...
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17...
Determinants of sufficient daily activity in Australian primary school children (2006)
Spinks, A, Macpherson, A, Bain, C, McClure, R
Aims: Australian guidelines recommend that children participate in at least one hour of physical activity every day. We aimed to measure physical activity participation in a random sample of...
Determinants of sufficient daily activity in Australian primary school children (2006)
Spinks, A, Macpherson, A, Bain, C, McClure, R
Aims: Australian guidelines recommend that children participate in at least one hour of physical activity every day. We aimed to measure physical activity participation in a random sample of...
Campabadal, F, Fleta, C, Key, M, Lozano, M, Martinez, C, Pellegrini, G, ...
The ABCD3TA is a 128-channel ASIC with binary architecture for the readout of silicon strip particle detectors in the Semiconductor Tracker of the ATLAS experiment at the Large Hadron Collider (LHC)....
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
For the first time at LEP the production of prompt photons is studied in the collisions of quasi-real photons using the OPAL data taken at e+e- centre-of-mass energies between 183 GeV and 209 GeV....
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A study of Z-boson pair production in e+e- annihilation at center-of-mass energies between 190 GeV and 209 GeV is reported. Final states containing only leptons, (l+l-l+l- and l+l-nn), quark and...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A study of Z-boson pair production in e+e- annihilation at center-of-mass energies between 190 GeV and 209 GeV is reported. Final states containing only leptons, (l+l-l+l- and l+l-nn), quark and...
Beam tests of ATLAS SCT silicon strip detector modules (2005)
Campabadal, F, Fleta, C, Key, MH, Lozano, M, Martinez, C, Pellegrini, G, ...
Howells, J., Tether, B., Blind, K., Edler, J., Hipp, C., Montobbio, F., ...
Howells, J., Tether, B., Blind, K., Edler, J., Hipp, C., Montobbio, F., ...
Search for R-parity violating decays of sfermions at LEP (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A search for pair-produced scalar fermions under the assumption that R-parity is not conserved has been performed using data collected with the OPAL detector at LEP. The data samples analysed...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
We present the first experimental results based on the jet boost algorithm, a technique to select unbiased samples of gluon jets in e+e- annihilations, i.e. gluon jets free of biases introduced by...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A study of Z-boson pair production in e+e- annihilation at center-of-mass energies between 190 GeV and 209 GeV is reported. Final states containing only leptons, (l+l-l+l- and l+l-nn), quark and...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Cross-section and angular distributions for hadronic and lepton-pair final states in e+e- collisions at centre-of-mass energies between 189 GeV and 209 GeV, measured with the OPAL detector at LEP,...
A Study of $W^{+}W^{-}\gamma$ Events at LEP (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A study of W+W- events accomanied by hard photon radiation produced in e+e- collisions at LEP is presented. Events consistent with being two on-shell W bosons and an isolated photon are selected from...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
In total 1317 di-lepton events with significant missing transverse momentum were identified in a total data sample of 680 pb-1 collected at e+e- centre-of-mass energies ranging from 183 GeV to 209...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A search for single production of doubly-charged Higgs bosons has been performed using 600.7 pb^-1 of e+e- collision data with sqrt(s)=189--209GeV collected by the OPAL detector at LEP. No evidence...
A study of charm production in beauty decays with the OPAL detector at LEP (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Using an inclusive method, BR(b -> D\bar{D}X) has been measured in hadronic Z^0 decays with the OPAL detector at LEP. The impact parameter significance of tracks opposite tagged b-jets is used to...
Measurement of charged current triple gauge boson couplings using W pairs at LEP (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Triple gauge boson couplings are measured from W-pair and single photon events recorded by the OPAL detector at LEP at center-of-mass energies between 183 - 209 GeV with a total integrated luminosity...
Abbiendi, G, Carter, A, De Wolf, E, McPherson, R A, Neal, H, Thomson, M, ...
Hadronic Z0 decays with identified electrons or muons have been used to measure the forward-backward asymmetries of e^+e^- --> Z0 --> bbbar and e^+e^- --> Z0 --> ccbar events. The asymmetries at...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Gluon jets with a mean energy of 22 GeV and purity of 95% are selected from hadronic Z0 decay events produced in e+e- annihilations. A subsample of these jets is identified which exhibits a large gap...
Abbiendi, G, Ainsley, C, Alexander, G, Åkesson, P F, Allison, J, Amaral, P, ...
For the first time at LEP the production of prompt photons is studied in the collisions of quasi-real photons using the OPAL data taken at e+e- centre-of-mass energies between 183 GeV and 209 GeV....
Abbiendi, G, Ainsley, C, Alexander, G, Åkesson, P F, Allison, J, Amaral, P, ...
For the first time at LEP the production of prompt photons is studied in the collisions of quasi-real photons using the OPAL data taken at e+e- centre-of-mass energies between 183 GeV and 209 GeV....
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A search for pair-produced leptoquarks is performed using e+e- collision events collected by the OPAL detector at LEP at centre-of-mass energies between 189 and 209 GeV. The data sample corresponds...
Abbiendi, G, Ainsley, C, Alexander, G, Allison, J, Amaral, P, Anagnostou, G, ...
A search for stable and long-lived massive particles of electric charge |Q/e|=1 or fractional charges of 2/3, 4/3, and 5/3 is reported using data collected by the OPAL detector at LEP, at...
Test of non-commutative QED in the process $e^{+}e^{-} \to \gamma \gamma$ at LEP (2003)
Abbiendi, G, Ainsley, C, Alexander, G, Allison, J, Amaral, P, Anagnostou, G, ...
Non-communicative QED would lead to deviations from the Standard Model depending on a new energy scale $\Delta_{NC}$ and a unique direction in space defined by two angles $\eta$ and $\xi$. Here in...
Bose-Einstein Correlations of $\pi^{0}$ Pairs from Hadronic $Z^{0}$ Decays (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
We observed Bose-Einstein correlation in pi0 pairs produced in Z0 decays using the data sample collected by the OPAL detector at LEP 1 from 1991 to 1995. Using a static Gaussian picture for the pion...
A Measurement of Semileptonic B Decays to Narrow Orbitally-Excited Charm Mesons (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
The decay chain b -> Bbar -> D^{**0} l nu X, D^{**0} -> D^{*+} pi^-, D^{*+} -> D^0 pi^+, D^0 ->(Kpi or K3pi) is identified in a sample of 3.9 million hadronic Z decays collected with the OPAL...
Di-Jet Production in Photon-Photon colisions at $\sqrt{s_{ee}}$ from 189 to 209 GeV (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
Di-jet producion is studied in collisions of quasi-real photons at e+e- centre- of-mass energies sqrt(s)ee from 189 to 209 GeV at LEP. The data were collected with the OPAL detector. Jets are...
A Study of W+ W- gamma events at LEP (2003)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
We have analysed the data collected by OPAL at centre-of-mass energies between 189 and 209 GeV searching for Higgs boson candidates from the process e/sup +/e/sup -/ to h/sup 0/Z/sup 0/ followed by...
Power supply and power distribution system for the ATLAS silicon strip detectors (2001)
ATLAS Collaboration, Bohm, J, Cindro, V, Eklund, L, Gadomski, S, ...
A Simultaneous measurement of the QCD color factors and the strong coupling (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, PF, Alexander, G, Allison, J, ...
Leading particle production in light flavor jets (1999)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Akesson, PF, Alexander, G, Allison, J, ...
Reprinted from the transactions of the Gaelic Society of Inverness.
Children's exposure to traffic and pedestrian injuries.
Macpherson, A, Roberts, I, Pless, I B
OBJECTIVES: The purpose of this study was to estimate children's exposure to traffic (number of streets crossed) and to determine the role of exposure in pedestrian injury. METHODS: Questionnaires...
Reduced bone density in patients with inflammatory bowel disease.
Bjarnason, I, Macpherson, A, Mackintosh, C, Buxton-Thomas, M, Forgacs, I, Moniz, C
BACKGROUND: Reduced bone mineral density in patients with inflammatory bowel disease is thought to be due to disturbances in calcium homeostasis or the effects of corticosteroid treatment. AIMS: To...
Intestinal tolerability of nitroxybutyl-flurbiprofen in rats.
Somasundaram, S, Rafi, S, Jacob, M, Sigthorsson, G, Mahmud, T, Sherwood, R, ...
BACKGROUND: Nitric oxide derivatives of non-steroidal anti-inflammatory drugs (NSAIDs) are thought to be much less ulcerogenic than their parent compounds. AIM: To compare the effect and potency of...
Khoo, U Y, Bjarnason, I, Donaghy, A, Williams, R, Macpherson, A
It has been suggested that antibodies to a colonocyte protein of 40 kD (an intestinal isoform of tropomyosin) are specifically found in the serum and mucosa of patients with ulcerative colitis, which...
Keating, J, Bjarnason, I, Somasundaram, S, Macpherson, A, Francis, N, Price, A B, ...
Intestinal function is poorly defined in patients with HIV infection. Absorptive capacity and intestinal permeability were assessed using 3-O-methyl-D-glucose, D-xylose, L-rhamnose, and lactulose in...
Mucosal antibodies in inflammatory bowel disease are directed against intestinal bacteria.
Macpherson, A, Khoo, U Y, Forgacs, I, Philpott-Howard, J, Bjarnason, I
In contrast with normal subjects where IgA is the main immunoglobulin in the intestine, patients with active inflammatory bowel disease (IBD) produce high concentrations of IgG from intestinal...
Bjarnason, I, Batt, R, Catt, S, Macpherson, A, Maxton, D, Menzies, I S
BACKGROUND/AIM: The reliability of a quantitative method for the non-invasive assessment of intestinal disaccharide hydrolysis was assessed. METHODS: Differential excretion of intact disaccharide,...
Intestinal permeability and inflammation in patients on NSAIDs
Sigthorsson, G, Tibble, J, Hayllar, J, Menzies, I, Macpherson, A, Moots, R, ...
a Department of Medicine, King's College School of Medicine and Dentistry, London, UK, b Department of Rheumatology, Northwick Park Hospital, Middlesex, UK
Lee, J, Bridger, S, McGregor, C, Macpherson, A, Jones, J
BACKGROUND—Genetic anticipation has been proposed to explain observed age differences at diagnosis of Crohn's disease in affected parents and offspring. AIMS—To compare affected parent-child...
Fine mapping of the chromosome 3p susceptibility locus in inflammatory bowel disease
Hampe, J, Lynch, N, Daniels, S, Bridger, S, Macpherson, A, Stokkers, P, ...
BACKGROUND AND AIMS—Genetic predisposition for inflammatory bowel disease (IBD) has been demonstrated by epidemiological and genetic linkage studies. Genetic linkage of IBD to chromosome 3 has...
Somasundaram, S, Rafi, S, Hayllar, J, Sigthorsson, G, Jacob, M, Price, A, ...
a Departments of Clinical Biochemistry and Medicine, King's College School of Medicine and Dentistry, Bessemer Road, London, UK, b Department of Cellular Pathology, Northwick Park and St Mark's...
Mandatory helmet legislation and children's exposure to cycling
Macpherson, A, Parkin, P, To, T
Background—Mandatory helmet legislation for cyclists is the subject of much debate. Opponents of helmet legislation suggest that making riders wear helmets will reduce ridership, thus having a...
Industrial innovation in the small business sector: empirical evidence from metropolitan Toronto
In this paper, the author examines some of the key technical relations which exist between small industrial firms and knowledge-intensive units in the producer services. Particular attention is...
The external information linkages of industrial firms in two sectors of Buffalo's manufacturing base -- medical instruments, and chemicals -- are examined. Survey data are presented which indicate a...